Finding the Fourth Proportional to 1,098,199.90, 1,647,569.85 and 378,552.70
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Solution
The fourth proportional to 1,098,199.90, 1,647,569.85 and 378,552.70 is: 567,922.12
Step by Step Solution
- Step 1: Write the proportion equation
1,098,199.90 : 1,647,569.85 = 378,552.70 : x - Step 2: Convert to fraction form
1,098,199.90/1,647,569.85 = 378,552.70/x - Step 3: Cross multiply
1,098,199.90x = 1,647,569.85 × 378,552.70 - Step 4: Simplify right side
1,098,199.90x = 623,692,015,156.10 - Step 5: Solve for x
x = 623,692,015,156.10/1,098,199.90 - Step 6: Final answer
x = 567,922.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.